I currently own two HxC Floppy. One is for my Atari ST and I'm able to easily make it work, from floppy images or creating new disks on which I place the files.
My second HxC Floppy arrived there a few days ago for my Amiga 500.
No problem to use ADF files, it works perfectly!
By cons, it is impossible to create a "blank" disk and then add files. HFE file is recognized (it is listed), but once on my Amiga, it appears at worst "BAD" at best it is empty. Curiously, the "good" HFE are 2001 ko, the "bad" still less. I used the "DOS Floppy Disk File Browser" using the "File system types: 880KB DSDD AmigaDOS" but it does not work.
Someone has a clue? Maybe my method is not good at all ?
Blank disks from QuickInstall_FloppyDiskImages.zip are ok for my Amiga, but how to fill them from my PC where I downloaded files for the Amiga (some démos from Pouet.net) ?
Hope you understand what I wrote...

I attached my attempt with DOS Floppy Disk File Browser and the demo Retrobution...
If that could help, I have the latest softwares and firmware.
Thank you for your answers.